Gas or air reversing valve



C. STENBOL GfS OR AIR REVERSING VALVE Oct. 28.

Filed Aug- 16 1920 4 Sheets-Sheet 1 lll/l/ c STENBOL Get. 28', 1922;;

GAS 0R AIR REVERSING VALVE Filed Aug- 16 1920 4 sheets-Sheet 2 Oct. 28|924.

C. STENBOL GAS OR AIR REVERSING VALVE Filed Aug? 16 1920 4 Sheets-Sheet5 [S75/visa.

Oct.; 28. |924.

C. STENBOL GAS 0R AIR REVERSING VALVE Filed Aug. 16

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Patented Got. 2S, i924..

CARL STENBOL, 0F SAULT STE. .MARIE ONTARIO, CANADA.

GASV R AIR REVERSING- VALVE.

Application filed August 16, 1320. Serial No. 403,972.

To all whom t may concer/n.'

Be it known that l, CARL STENBOL, a subject of the King of GreatBritain, a resident ofthe town of Sault Ste. Marie, Province of Ontario,Dominion of Canada, haveinventcdcertain new and useful Improvements inGas or Air Reversing Valves, of which the following is a specification.

This invention relates to improvements in gas or air reversing valvesdesigned for use on regenerator furnaces, such as open hearth,reheating, pit furnaces, etc., and the objects of the invention are torender the valve self-contained and 4simple in construction andoperation, to provide aprime mover or movers, and bearings for the valveon the same stringers, and clear of the heat and eX- pansion and so thatat all times the valve and prime mover or movers and the moving andcoacting parts thereof will be in perfect alignment.

Further objects are to construct the valve sectional, each sectionhaving a valve face and coacting conduit and stem, the two sectionsforming a joint at the outer periphery of the valve, thereby making thejoint at the strongest part thereof, to provide an adequate coolingmeans for the valve and valve seats, and to provide adjustable stops toco act with the air valves, and govern the opening of the same.y r

Further objects are to adapt the valve to the four-way type, andgenerally to adapt the several parts to better perform the functionsrequired of them. c

`With the above and other objects in view, the invention consistsessentially ofthe im proved construction particularly described and setforth in the following specilication and accompanying drawings Yformingpart of the same.

In the drawings:

Figure 1 is a longitudinal section of my l supplied whichy is connectedimproved valve used as a gasy valve, 4and showing the cooling means forthe valve, and also the prime mover whereby the valve is movedlongitudinally.

Figure 2 is a cross section of the saine.

Figure 3 is a plan view ofthe improved valve, one-half of the casingAbeing in section.

Figure 4 is anend view of the valvecas ino' showing the prime mover. c

Jigure 5 is a longitudinal section of my contraction of the brick work,f

improved valve adapted for use as an air valve. Y v

Figure 6 is a cross section of they same. Figure 'Z is a longitudinalsection of my improved valve yconstructed as a four-wayr valve. Fig. 8is a fragmentary plan view ofthe deviceshown in Fig. 5.

Like characters .of reference refer to like parts in the severalfigures.

Referring to thedrawings, A represents the improved valve` comprising anouter metal casing 10 having a iirebrick lining 1l, the casing beingprovided intermediate its length with annular hollow valve seats 12 andlf3, which'are designed to, be cooled by; .waterv or other fluids whichcirculate throughthe said valve seats.

The ends of the casing 10 are closed by covers 14 and 15 carryingbearings 16 .and 17, which are in alignment with the longitudinal axisof the'casing, and in these bearings, the valve stems 18k and 19 areslidably mounted; f

The valve C is provided with a double face, that is to say its front andrear faces coact with the valve seats 12 and 13 respectively, and thevalve' is formed of two sections 20 and 21 which have conicallongitudinal conduits 22 and 23, which communicate with'theyhollow valvestems 18 and 19.

Theftwoi sections 2O and 21 of the valve C have their coacting endsflanged as shown at 24 and'25 to engage with each other, so that thejoint of the valve is at the strongest pos sible point;

At'the junction of the conical conduits 22 and 23w1th the valvesections, transverse -walls 26 and 27 are provided, each having acentral orifice therethrough. f

From the vorifice in the wall 27 a pipe 28 extendsradially through thehollow valve C 'and this lpipe communicates with the conduit 23. 'Y y Qnthe stein 18, a water inlet'pipe 29 is topa suitable sourceA of watersupply, and a water outlet jpipe S0 is connected to the end of the stem19, so'that a positive circulation of cooling fluid takes place throughthe stein 18,`conical conduit 22', orifice in the wall 26,-the valve C,the pipe 28, the conical conduit 23, the stem 159, and the outlet pipe30. Outlet and inlet pipes 29a and 30?l are providedv to circulate thewater through the valve seats as illustrated in Figure 2 The valve stein19 and the piston rod 31 ot the prime mover B are connected by suitablecotter means 32. Motive Huid is delivered to the prime mover B throughsuitable valve and pipe means 33 and 34. Communicating with the valvecasing are a plurality of Hues, namely the gas Hue 35, checker Hue 36and stack Hue 37.

The valve C is actuated by the prime mover B, and will be movedhorizontally to coact with one of the valve seats 12 and 13.

lll/*hen the valve C is in the position shown in Figure 1, the outcominggases from the furnace pass through the checker Hue 36 vin to the stackHue 37. When the valve C is moved longitudinally toV engage the valveseat 13, then the incoming gases will enter the gas Hue 35, and passinto the checker Hue 36, and the stack Hue 37 will be cut 0H by thegases from the said Hues. Y

This valve is also adapted for an air inlet valveas'illustrated `inFigure V5, in which the casing 10 carries hollow annular valve seat-s 12and 13, and the ends of the casing 10 are open, and are provided withhollow annular valve seats 39 and 40. The casing is lined with firebrick work 11, andV communicates with Hues 41, 42 and 43,'which arerespectively checker, stack and checker Hues. The valve C is of the sameconstruction as y has been described, and it is deemed unnecessary tofurther enlarge 'upon the same.

Cn the stems 18 and 19, air valves 44 and '45 are slidably mounted, andcoact with the stops 46 and 47, which control the opening ofthe said airvalves, so that an adequate supply ot air is delivered to the casing 10.

The stems 18 and 19 Varetslidably mounted 'in' the prime movers D, whichcontrol the llongitudinal movement of the valveV C, and

the said stems are connected to the inlet and outlet water pipes 48 andl49, wherebyV circulating vcooling water is delivered to the valve C. Y

The prime movers D may be hydraulic or other suitable power.

/When the valve C engages with the valve seat 12 as shown in Figure 5,then the air Vvalve 44 is open, and the air valve 45 is closed, Aand theair entering the casing 10 l passes directlyfinto the checker Hue 41.

lThe gasesrom the tur-nace pass through the checker Hue 43 and aredelivered to the stack Hue42. When the valve C is moved y longitudinallyby one of the prime movers D, the valve coacts withthe valve seat 13,

Vand the valve 45 is opened, and the valve 44y closed.

The air entering the casing 10 throughv the Y open end thereof, passesdirectly into the checker Hue 43. Thegases from the 'furnace passthrough'thechecker HueY 41 into theV stack Hue 42.

The stops 46 and 47 are adjustable to limit the opening movement of thevalves 44 and 45. To this end each stop is -formed with arms 46aterminating in'angular supporting feet 47a which restV on the frame otthe valve casing, as shown in Fig. 8, and are slotted to receivesuitable securing bolts therethrough. Y Itwill be understood that i.

' arrested, while the stems pass on through for the full length of thestroke and similarly n on the return stroke. f

The valve seats 12, 13, 39 and 40 are cooled by circulating Huid. 't

'In Figure 7 a modilication of thev gas valve is shown in which it isarranged ina four-way type. In this casefthe valve A consists of a metalcasing 10 having a lire 'brick lining 11, the casing being providedintermediate of its length with annular hollow valve seats 12 and 13,andadjacent to the ends with hollow annular valve seats 39 and 40. i

r)The ends of the casing are'in thisV case closed, but gas inlets 60 and61 areprovided. The valve C is in this case provided with a double facewhich is formed in two sections 2O and 21 which have conicallongitudinal conduits 22 and 23 which communicate with the hollow valvestems 18 and 19.

In the end wall of the casing A bushings 62 and 63 are provided throughwhich the stems 18 and 19 slidably pass and guides 64 and 65areprovidedin the ends of the casing A and arranged diametrically oppositeeach other. Hollow valves 66 and 67Y are slidably mounted on thestems 18and 19 and coactA with the hollow valve seats 39 and 40, and thesevalves carry rods 68 and 69 which slidably engage with the guides 64 and65, the rodsbeing provided with enlarged ends T0 and 71, Y

Cn the hollow stems 13 and 19 discs T2 and 7 3 are mounted and coactwith the enlarged ends 70 and 71 of the rods 68 and 69 to move thevalves 66 and 67 longitudinally on their respective hollow stems.

The formation of the valve C is similar to that already describedA and asuitable inlet pipe 29 is provided to supply a cooling liquid whichcirculates through the valve andv The stem 19 is connected to the pistonrod Y 3l of the reversible prime mover B which is similar to thatillustrated in Figure l, so that it is not thought necessary to Jfurtherdescribe this prime mover. n

The casing l() communicates with checker flues 7 4 and 7 5 and with theintermediate stack flue 76.

When the valve is in operation and the gas inlet 6() is in communicationwith the casing 10 owing to the valve 66 being disengaged from theannular hollow valve seat 39, then gas enters into the casing 10 andpasses through the checker work flue 7 4f.

The checker work flue 7 5 is in this scale in communication with thestack flue 76. Then the motion of the prime mover B has been reversed,the valve C will engage with the annular hollow valve seat 13, and thediscs 7 2 engaging with the enlarged ends 70 of the rod 68 will closethevalve 66 on the valve seat 39.

During the longitudinal movement of the valve C, the valve 67 on thestem 19 will become disengaged from the valve seat 40, so that the gasflue 61 will in this case communicate with the casing 10 and with thechecker work flue 75.

The checker flue 7 i will now communicate with the stack flue 76. Gn thereciprocations of the prime mover B to actuate the valve C, the valves66 and 67 will besimultaneously actuated, movement of one of thesevalves lagging behind the movement of the other due to the lost motionprovided.

As many changes could be made in the above construction and many widelydifferent embodiments of my invention within the scope of the claims,constructed without departing from the spirit or scope thereof, it isintended that all matter contained in the accompanying specication anddrawings shall be interpreted as illustrative and not in a limitingsense.

that I claim as my invention is:

l. A gas or air reversing valve comprising in combination, a casing,hollow annular valve seats in the casing, flues communicat ing with thecasing, an operating valve comprising a hollow annular valve head,hollow stems formed integral with the valve head,

inlet and outlet orifices provided between the valve head and stems, aradially extending pipe in the outlet oriiice providing completecirculation of the cooling fluid, means to move the valvelongitudinally, whereby one pair of iiue's are put into communication inone positionof the valve, while another pair of flues will be p'ut incommunication in another position of the valve.

2. A valve as claimed in claim l, in which transverse walls are providedin the valve head, separating the same from the hollow stems, inlet andoutlet orifices in said walls, a radially extending pipe in the outletori,n tice providing complete circulation of the cooling fluid throughthe valve head, means to move the valve longitudinally, whereby one pairof flues are put into communication in one position of' the valve, whileanother' pair of fiues will be put into communication in anotherposition of the valve.

3. A valve of the class described, comprising a casing, having openends, hollow annular valve seats in the casing intermediate of the ends,and hollow annular valve seats on the end of the casing, a valvevoperating between the first said valve seats, air valves coacting withthe last said valve seats, and carried by the first said valve, andmeans for moving the valves longitudinally.

4. Thevalve claimed in claim 3, in which checker, stack and checker iuesare provided communicating with the valve casing, the first checker andstack flues being in communication when the valve is moved in onedirection, and the last checker flue cut off from the stack, and thesecond checker and stack iiue communicating when the valve is in anotherposition and the iirst checker line then cut o.

n 5. The valve claimed in claim 3, in which stop members are providedcoacting with the air valves to govern the opening of the same.

c In witness whereof I have hereunto set my hand in the presence of twowitnesses.

CARL STENBOL. Witnesses R. BARBER, C. W. WALLS.

